DE742791C - Process for improving the non-cutting deformability of metals, in particular steel - Google Patents
Process for improving the non-cutting deformability of metals, in particular steelInfo
- Publication number
- DE742791C DE742791C DEM148595D DEM0148595D DE742791C DE 742791 C DE742791 C DE 742791C DE M148595 D DEM148595 D DE M148595D DE M0148595 D DEM0148595 D DE M0148595D DE 742791 C DE742791 C DE 742791C
- Authority
- DE
- Germany
- Prior art keywords
- metals
- cutting
- deformability
- improving
- particular steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
- B21C9/02—Selection of compositions therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zur Verbesserung der spanlosen Verformbarkeit von Metallen, insbesondere Stahl Die Erfindung betrifft ein Verfahren zur Verbesserung der Ziehfähigkeit von Metallen. Es sind bereits Verfahren bekannt, die auf der Metalloberfläche zur Erleichterung des Ziehens Metallschichten, beispielsweise Kupfer, Blei, Quecksilber, aufbringen. Es ist anderseits bekannt, die Ziehfähigkeit durch Aufbringen von ölaufsaugenden Salzschichten, beispielsweise Phosphat- oder Kalkschichten, zu erleichtern, wobei man von der Voraussetzung ausging, daß es auf gute Ölaufsaugefähigkeit und entsprechende Porosität ankommt.Process to improve the non-cutting deformability of metals, in particular steel. The invention relates to a method for improving drawability of metals. There are already methods known on the metal surface for Facilitating the drawing of metal layers, for example copper, lead, mercury, raise. On the other hand, it is known to be able to be drawn by applying oil-absorbent Salt layers, for example phosphate or lime layers, to facilitate, whereby one assumed that it had good oil absorbency and appropriate Porosity matters.
Es wurde nun überraschenderweise gefunden, daß glatte, praktisch porenfreie, bei normalen Bedingungen spröde Filme aus synthetischen organischen Polymerisaten, die bei den Verformungsbedingungen des Metalls selbst plastisch verformbar werden, eine bedeutende Zieherleichterung geben. Als solche Polymerisate eignen sich beispielsweise die bekannten Kunstpreßstoffe und auch -klebstoffe, die die genannte Bedingung erfüllen. Solche Filme erniedrigen die aufzuwendenden Ziehlasten gegenüber nur geheiztem Material.It has now been found, surprisingly, that smooth, practically pore-free, under normal conditions brittle films made of synthetic organic polymers, which become plastically deformable under the deformation conditions of the metal itself, give a significant draw relief. Examples of such polymers are suitable the known plastics and plastics adhesives that meet the above-mentioned condition. Such films reduce the drawing loads to be expended compared to material that is only heated.
Als für den vorliegenden Zweck geeignet erwiesen sich beispielsweise folgende Gruppen von Polymerisationsharzen: Harnstoff - Formaldehyd - Polymerisationsprodukte, wie Plastopal, Phenolaldehyd1tondensationsprodukte,wie Resinol, Vinylmischpolymerisate, wie Luvikan, Thioplasten, das sind Reaktionsprodukte von Dichloräthan mit Polysulfiden, wie Thiokol, synthetische orga= nische Polymerisate, wie das Verharzungsprodukt aus Salzen der Abietinsäure, beispielsweise erhalten durch oxydierendes Einbrennen einer Lösung von Kaliumabietat auf dem Ziehgut.For example, proved to be suitable for the present purpose the following groups of polymerisation resins: urea - formaldehyde - polymerisation products, such as Plastopal, phenol aldehyde condensation products such as resinol, vinyl copolymers, like Luvikan, thioplasts, these are reaction products of dichloroethane with polysulphides, like Thiokol, synthetic organic polymers like the resinification product from salts of abietic acid, for example obtained by oxidizing stoving a solution of potassium abietate on the drawing material.
Die Herstellung der Kunststoffilme geschieht zweckmäßig so, daß man den Kunststoff in einem Lösungsmittel löst oder emulgiert und auf die gereinigten, vorzugsweise gründlich gebeizten, gebürsteten und getrockneten, zu ziehenden Werkstücke aufbringt und auftrocknet oder vorzugsweise aufbrennt. Die aufgebrannten Schichten sind durch diese Behandlung gehärtet und werden bei den Ziehbedingungen plastisch und nicht ,wie die nur aufgetrockneten Schichten ungleichmäßig abgeschmiert. Am besten geeignet sind solche' Kunststoffe, die nach dem Aufbringen. hart sind und bei den Verformungsbedingung,i' plastisch, aber noch nicht zu weich ,werden: Es ist von Vorteil, wenn die Lackschichten gut haften. Man kann zur Verbesserung der Haftfestigkeit dem Kunststoff Eisenoxyd zusetzen.The production of the plastic films is expediently done so that one dissolves or emulsifies the plastic in a solvent and applies it to the cleaned, preferably thoroughly pickled, brushed and dried, Applies workpieces to be drawn and dries them or preferably burns them on. the Burned-on layers are hardened by this treatment and are used in the Drawing conditions plastic and not, like the only dried layers, unevenly lubricated. The most suitable are those 'plastics that are after application. are hard and under the deformation condition 'i' are plastic, but not yet too soft , become: It is an advantage if the layers of paint adhere well. One can improve add iron oxide to the adhesive strength of the plastic.
Beim Ziehen verwendet man die hierfür üblichen Öle, Fette oder Emulsionen, wie Rüböi, Seifenlösung, Emulsion M 3 usw.When drawing, the usual oils, fats or emulsions are used, such as Rüböi, soap solution, emulsion M 3 etc.
Die erfindungsgemäßen Schichten erleichtern nicht nur die Ziehfähigkeit, sondern auch andere spanlose Verformungsvorgänge. Die Schichten sind zur Verformungserleichterung besonders dann von Vorteil, wenn es sich um Metalle handelt, auf denen nach dem Oberflächenverfahren sich schwer salzartige Gleitschichten aufbringen lassen, wie beispielsweise bei Edelstahl.The layers according to the invention not only facilitate the drawability, but also other non-cutting deformation processes. The layers are to ease deformation especially advantageous when it comes to metals on which after Surface processes are difficult to apply salt-like sliding layers, such as for example with stainless steel.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM148595D DE742791C (en) | 1940-09-06 | 1940-09-06 | Process for improving the non-cutting deformability of metals, in particular steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM148595D DE742791C (en) | 1940-09-06 | 1940-09-06 | Process for improving the non-cutting deformability of metals, in particular steel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE742791C true DE742791C (en) | 1943-12-11 |
Family
ID=7336522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM148595D Expired DE742791C (en) | 1940-09-06 | 1940-09-06 | Process for improving the non-cutting deformability of metals, in particular steel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE742791C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939024C (en) * | 1950-04-18 | 1956-02-16 | Mannesmann Ag | Cover for cold deformation of particularly difficult to deform metals, metal alloys, steel alloys or the like. |
DE953516C (en) * | 1950-03-10 | 1956-12-06 | Comptoir Ind D Etirage Et Prof | Vitreous lubricant for hot working metals, e.g. B. Extrusion |
DE1287036B (en) * | 1966-08-06 | 1969-01-16 | Reisholz Stahl & Roehrenwerk | Use of an aqueous solution of polyvinyl alcohol to facilitate the cold forming of metallic workpieces |
EP0451327A2 (en) * | 1989-10-02 | 1991-10-16 | Okan Dr. Akin | Metal tube with interior anticorrosion coating formed of cracked lubricant |
-
1940
- 1940-09-06 DE DEM148595D patent/DE742791C/en not_active Expired
Non-Patent Citations (1)
Title |
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None * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE953516C (en) * | 1950-03-10 | 1956-12-06 | Comptoir Ind D Etirage Et Prof | Vitreous lubricant for hot working metals, e.g. B. Extrusion |
DE939024C (en) * | 1950-04-18 | 1956-02-16 | Mannesmann Ag | Cover for cold deformation of particularly difficult to deform metals, metal alloys, steel alloys or the like. |
DE1287036B (en) * | 1966-08-06 | 1969-01-16 | Reisholz Stahl & Roehrenwerk | Use of an aqueous solution of polyvinyl alcohol to facilitate the cold forming of metallic workpieces |
EP0451327A2 (en) * | 1989-10-02 | 1991-10-16 | Okan Dr. Akin | Metal tube with interior anticorrosion coating formed of cracked lubricant |
EP0451327A3 (en) * | 1989-10-02 | 1992-02-26 | Okan Dr. Akin | Metal tube with interior anticorrosion coating formed of cracked lubricant |
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